heuer



July 24, 1951 I L. H. HEUER RING CLOSING PLIERS Filed Feb. 24, 1947 m 3 u .w a M HM m L UNITED STATES PATEN oer-ice H 'RING'CLOSING flzlllRS f v V Lawrence=H. lieuerilletroit,

Application Febriiary 24, 1 47', .fse a1fNo; 730;i3;

v 1 r 1L3" r This invention relates to an improved hog ring ends are brought into adjacent side-by-side can'- or clip and to improved mechanism for closing the centric relationship {andthe closed ring now presame. 's'ents a circularfshapefi" p Rings of this general type are widely used in the The original ring blan l; has a base which is automobile body industry in securing the springs preferably convexe'd inwardly-between the two of a spring cushion assembly together or in se- I arcuate complementary ends. Thebase is of subcuring the same to surrounding boundary wires stantial length-= so 'as to provide sufiicient ring and also in securing upholstery material to a v stool; to permita substantial overlap of theend spring cushion assembly. e r portions of the'ringwhenthering is closed.

Such rings commonly comprise an angularsplit 10' Improved closing mechanism is provided for ring blank exhibiting a pair of spaced apart arms the improvedring." Such improved closing mechadapted to begripped between a pair of jaws of anisrn comprises "a pair of 'jaws'supported to be a tool to have the twoarms of the ring movedto- 'move rowarq'andiaw yrrom each other. Sp ward each other and into crossed overlapping "refically, the two jaws may be pivotally coupled tolationship. The two ends of the arms are'nor gether for swin'gablemovement toward and away mally so closed that the ring assumes an angular from each other; The opposed faces of these shape. I complementary jaws are provided with arcuate When such rings are employed to secure two ring supporting grooves adapted to support a ring spring coils of a cushion spring assembly together and to advance its en'd's' i'nto "overlapping conit is not uncommon for the crossed arms of the centric relationship-as above described. ring to open to be spread apart during use of the A meritorious featureis that these grooves conspring cushion by the pressure exerted by the stitute asto'ea'ch jaw arcs of successive convoseparate spring coils on the ends of the ring. It lutions' of'a'heliXfThe grooves of the two jaws is not unusual in spring cushion practiceto find areinclinedjin opposite directions away from the several of these hog, rings, as they are termed in axis orjrrin'g "suppprted'ftherebetween whereby thetrade, with their ends pulled sufiiciently apart the two "ends of the ring are moved into closely so as to release the elements that were intended adjacent overlapping concentric relationship as to be held together thereby. the ring is closed.

An object of this invention is to provide a hog The jaw members are so constructed as to proring which is so shaped and which is closed in vide overlapping ring supporting portions dissuch a manner that when closed it assumes a subposed between the jaw faces which portions are stantially circular shape with the two ends of the adapted to engage the base of the ring and hold ring overlapping each other and extending alongit inwardly of the ring so as to prevent angular side each other in substantially concentric relaoutward deformation of the base and in such a tionship. manner that the ring closes into circular shape Preferably the ends overlap each other throughrather than into an angular shape.

out a substantial arc of the circumference of the Other objects, advantages and meritorious fearing. Such a ring will resist a very substantial tures will more fully appear in the following deamount of opening pressure exerted inwardly scription, claim and drawings wherein:

thereof because the pressure is exerted against the Fig. 1 is a side elevation of the improved ring inner circumference of a ring made up of overclosing tool of this invention showing a ring lapped coils instead of against a pair of crossed he e arms whereby due to angular leverage the arms Fig. 2 is a sectional view taken on the line 2-2 may be readily spread apart. It has been disf gu With the ring re ov dcovered that a ring constructed in the manner Fig. 3 is a sectional View taken on the line 33 herein'set forth possesses substantially twice the of Fig. 1, but with the ring removed.

resistance to spreading or separation of its ends Fig. 4 is a side elevation of a ring blank emas is possessed by the old crossed arm type of bodying the improved ring of this invention. ring. Fig. 5 is a plan of the ring blank shown in Fig. 4.

This particular ring blank is so shaped and is so Fig. 6 is a side elevationof the jaws of the tool supported within my improved closing mechanism shown in association with the ring moved parthat as the opposed arcuate complementary ends tially t w the closed Positionare moved toward each other, they are brought Fig. '7 is a plan of the ring shown in Fig. 6. into overlapping alignment. In other words, as Fig. 8 is a fragmentary elevation similar to Fig. one end overlaps the other, the two overlappin 6 but showing the ring completely closed.

Fig? 9 is a plan view of the ring completely closed as shown in Fig. 8.

Fig. 10 is a fragmentary elevation of the jaws of the tool similar to the view of Fig. 6, but showing the ring more completely closed than it is in Fig. 6.

Fig. 11 is a plan view of th ring shown in Fig. 10.

Fig. 12 is a fragmentary view showing completely closed rings securing separate spring elements of a spring; assembly to ether. *g'jf a My improved ring blank illustratedin Figs. 4 and 5 comprises a base portion and opposed arcuate complementary end portions 22.

The-1 base portion might be described as approximate,

ly flat though it is preferably slightly convex inwardly between the end portions :as indicated particularly at 24. The base portion has such a length as to permit the end portions to'be'rolled' inwardly into overlapping relationship moi-oven;

lap each other for a substantial distance as shown i i Figs.- 10 through 12. 1 {In-Fig. 1 there is showii aolofing, 7 or tool adapted to be used .to closea r 3 tool shown is .of the general. character o,f{;the conventional hand tool but the aws. are shaped as herein set forth to close the this into circular aipai ef handleelementsgii and .28 ,pi'voted gether at 3.11. Each hand-1e .element is provided with jaw-por- .tion 32.

.ends of the rin blank .as. shown in Figs, l, -.6, .8 and 10. Preferably .each jaw iac'e' .s provided with a, plurality of grooves which lie closely, adjacent to. each other and constitute arcs of suc- The opposed jaws .are providewd -j'vlith L arcuate grooves adapted to receive the .arouate .cessive convolutions of a helix? These grooves are indicated as 34 and illustratedparticularly-iii Figs. 2jand 3.

as the ring .is supportedgbetween tary grooves of the opposed jaws theen dssare brought together as ;shown ilo Figs, {6 and 7.

These ends of the ring are picked-up and uid d by adjacent grooves of the complementary jaws .as shown in Figs. 8 and 1,0 .s o as -.to ,moged into overlapping ,relationshipflthrou'glioii subfstantial {arc [of the circumferenc of the ,ring.

; a considerable portion oftheir v,circumierence and the ring would have assumed a substantially circular shape, however, if the ring ends are moved ---'fi1rther to the position shown in Figs. 8 and 9,

then-a much more complete closure is efiected and a substantially greater overlap is accom- LAWRENCE-H. REFERENCES =CITED' Th'l o l w n reflfen'ces are of ltecg nfd inim fileoi t is patent: l

UNITED STATES "PATENTS Number Nam 31 8 243,895 1 111 g July 5, 1aa 256,525- Whiting p r; 1 8; 188,2 132.4,391 Lindsley .Aug. 118, .1885 11360 623.- Siden Apr. 5,1835: 470,5,45 Cochran Ma 1 392 .1, d .Eeb- 6, 1923 1.879210 ln a s e e .1932

2.299.380 ionamersi t a1. v y ioct. 20 119,4; 

